I think the better version of these ideas is in Jason Cohen's classic "Designing the Ideal Bootstrapped Business" talk.[0, 1]

The difference is that Jason Cohen's advice is based on personal experience growing four businesses to over $1M/yr in revenue. I'm not seeing what qualifies this author to give such broad, sweeping advice about bootstrapping.

[0] https://www.youtube.com/watch?v=otbnC2zE2rw

[1] https://mtlynch.io/notes/designing-the-ideal-bootstrapped-bu...